Revenue growth: find out what the extra sales cost
Revenue growth measures sales, while profit also depends on the cost of producing those sales. A company can become larger and earn less. Read the two changes together before describing a quarter as strong.
A worked comparison
Suppose an invented business reports revenue of $100 million and operating costs of $80 million. Operating profit is $20 million and the operating margin is 20%.
Next year, revenue reaches $120 million and operating costs $108 million. Sales grew 20%, but operating profit fell to $12 million. The margin is now 10%. A headline showing only sales growth leaves out the deterioration.
Ask what produced the increase
Separate higher prices, more units sold, acquired businesses and currency effects when the company provides that information. An acquisition can add sales without showing that the existing business attracted more customers.
Compare equivalent periods. A seasonal retailer’s holiday quarter should not be casually compared with its quieter quarter. Check whether the reported calendar and accounting basis changed.
Keep growth and margin side by side in your company research. Write the management explanation alongside the figures, then identify which part can be checked in the report.
Investment spending can temporarily reduce margins, but the label “investment” does not establish a future return. Record what is being spent, how management expects it to generate sales and what evidence you will examine next quarter.
Repeat the calculation with a third year in which sales remain at $120 million and costs fall to $96 million. Operating profit becomes $24 million. Stable sales and rising profit describe another situation entirely.
| Year | Revenue | Operating profit | Margin |
|---|---|---|---|
| 1 | $100m | $20m | 20% |
| 2 | $120m | $12m | 10% |
| 3 | $120m | $24m | 20% |